rename lv_objx/ to lv_widgets/
This commit is contained in:
Gabor Kiss-Vamosi
343
src/lv_widgets/lv_switch.c
Normal file
343
src/lv_widgets/lv_switch.c
Normal file
@@ -0,0 +1,343 @@
|
||||
/**
|
||||
* @file lv_sw.c
|
||||
*
|
||||
*/
|
||||
|
||||
/*********************
|
||||
* INCLUDES
|
||||
*********************/
|
||||
#include "lv_switch.h"
|
||||
|
||||
#if LV_USE_SWITCH != 0
|
||||
|
||||
/*Testing of dependencies*/
|
||||
#if LV_USE_SLIDER == 0
|
||||
#error "lv_sw: lv_slider is required. Enable it in lv_conf.h (LV_USE_SLIDER 1) "
|
||||
#endif
|
||||
|
||||
#include "../lv_core/lv_debug.h"
|
||||
#include "../lv_themes/lv_theme.h"
|
||||
#include "../lv_misc/lv_math.h"
|
||||
#include "../lv_core/lv_indev.h"
|
||||
#include "lv_img.h"
|
||||
|
||||
/*********************
|
||||
* DEFINES
|
||||
*********************/
|
||||
#define LV_OBJX_NAME "lv_switch"
|
||||
|
||||
/**********************
|
||||
* TYPEDEFS
|
||||
**********************/
|
||||
|
||||
/**********************
|
||||
* STATIC PROTOTYPES
|
||||
**********************/
|
||||
static lv_res_t lv_switch_signal(lv_obj_t * sw, lv_signal_t sign, void * param);
|
||||
static lv_design_res_t lv_switch_design(lv_obj_t * sw, const lv_area_t * clip_area, lv_design_mode_t mode);
|
||||
static lv_style_list_t * lv_switch_get_style(lv_obj_t * sw, uint8_t part);
|
||||
static lv_style_list_t * lv_switch_get_style(lv_obj_t * sw, uint8_t part);
|
||||
|
||||
/**********************
|
||||
* STATIC VARIABLES
|
||||
**********************/
|
||||
static lv_signal_cb_t ancestor_signal;
|
||||
static lv_design_cb_t ancestor_design;
|
||||
|
||||
/**********************
|
||||
* MACROS
|
||||
**********************/
|
||||
|
||||
/**********************
|
||||
* GLOBAL FUNCTIONS
|
||||
**********************/
|
||||
|
||||
/**
|
||||
* Create a switch objects
|
||||
* @param par pointer to an object, it will be the parent of the new switch
|
||||
* @param copy pointer to a switch object, if not NULL then the new object will be copied from it
|
||||
* @return pointer to the created switch
|
||||
*/
|
||||
lv_obj_t * lv_switch_create(lv_obj_t * par, const lv_obj_t * copy)
|
||||
{
|
||||
LV_LOG_TRACE("switch create started");
|
||||
|
||||
/*Create the ancestor of switch*/
|
||||
lv_obj_t * sw = lv_bar_create(par, copy);
|
||||
LV_ASSERT_MEM(sw);
|
||||
|
||||
if(sw == NULL) return NULL;
|
||||
|
||||
if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_cb(sw);
|
||||
if(ancestor_design == NULL) ancestor_design = lv_obj_get_design_cb(sw);
|
||||
|
||||
/*Allocate the switch type specific extended data*/
|
||||
lv_switch_ext_t * ext = lv_obj_allocate_ext_attr(sw, sizeof(lv_switch_ext_t));
|
||||
LV_ASSERT_MEM(ext);
|
||||
if(ext == NULL) {
|
||||
lv_obj_del(sw);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
lv_style_list_init(&ext->style_knob);
|
||||
|
||||
/*The signal and design functions are not copied so set them here*/
|
||||
lv_obj_set_signal_cb(sw, lv_switch_signal);
|
||||
lv_obj_set_design_cb(sw, lv_switch_design);
|
||||
|
||||
/*Init the new switch switch*/
|
||||
if(copy == NULL) {
|
||||
lv_obj_set_click(sw, true);
|
||||
lv_obj_add_protect(sw, LV_PROTECT_PRESS_LOST);
|
||||
lv_obj_set_size(sw, LV_DPI / 2, LV_DPI / 4);
|
||||
lv_bar_set_range(sw, 0, 1);
|
||||
|
||||
lv_theme_apply(sw, LV_THEME_SWITCH);
|
||||
}
|
||||
/*Copy an existing switch*/
|
||||
else {
|
||||
lv_switch_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
|
||||
|
||||
lv_style_list_copy(&ext->style_knob, ©_ext->style_knob);
|
||||
lv_obj_refresh_style(sw);
|
||||
}
|
||||
|
||||
/*Refresh the style with new signal function*/
|
||||
|
||||
LV_LOG_INFO("switch created");
|
||||
|
||||
return sw;
|
||||
}
|
||||
|
||||
/*=====================
|
||||
* Setter functions
|
||||
*====================*/
|
||||
|
||||
/**
|
||||
* Turn ON the switch
|
||||
* @param sw pointer to a switch objec
|
||||
* @param anim LV_ANOM_ON: set the value with an animation; LV_ANIM_OFF: change the value immediately
|
||||
*/
|
||||
void lv_switch_on(lv_obj_t * sw, lv_anim_enable_t anim)
|
||||
{
|
||||
LV_ASSERT_OBJ(sw, LV_OBJX_NAME);
|
||||
|
||||
#if LV_USE_ANIMATION == 0
|
||||
anim = LV_ANIM_OFF;
|
||||
#endif
|
||||
lv_switch_ext_t * ext = lv_obj_get_ext_attr(sw);
|
||||
ext->state = 1;
|
||||
lv_bar_set_value(sw, 1, anim);
|
||||
lv_obj_add_state(sw, LV_STATE_CHECKED);
|
||||
}
|
||||
|
||||
/**
|
||||
* Turn OFF the switch
|
||||
* @param sw pointer to a switch object
|
||||
* @param anim LV_ANIM_ON: set the value with an animation; LV_ANIM_OFF: change the value immediately
|
||||
*/
|
||||
void lv_switch_off(lv_obj_t * sw, lv_anim_enable_t anim)
|
||||
{
|
||||
LV_ASSERT_OBJ(sw, LV_OBJX_NAME);
|
||||
|
||||
#if LV_USE_ANIMATION == 0
|
||||
anim = LV_ANIM_OFF;
|
||||
#endif
|
||||
lv_switch_ext_t * ext = lv_obj_get_ext_attr(sw);
|
||||
ext->state = 0;
|
||||
lv_bar_set_value(sw, 0, anim);
|
||||
lv_obj_clear_state(sw, LV_STATE_CHECKED);
|
||||
}
|
||||
|
||||
/**
|
||||
* Toggle the position of the switch
|
||||
* @param sw pointer to a switch object
|
||||
* @param anim LV_ANIM_ON: set the value with an animation; LV_ANIM_OFF: change the value immediately
|
||||
* @return resulting state of the switch.
|
||||
*/
|
||||
bool lv_switch_toggle(lv_obj_t * sw, lv_anim_enable_t anim)
|
||||
{
|
||||
LV_ASSERT_OBJ(sw, LV_OBJX_NAME);
|
||||
|
||||
#if LV_USE_ANIMATION == 0
|
||||
anim = LV_ANIM_OFF;
|
||||
#endif
|
||||
|
||||
bool state = lv_switch_get_state(sw);
|
||||
if(state)
|
||||
lv_switch_off(sw, anim);
|
||||
else
|
||||
lv_switch_on(sw, anim);
|
||||
|
||||
return !state;
|
||||
}
|
||||
|
||||
/*=====================
|
||||
* Getter functions
|
||||
*====================*/
|
||||
|
||||
/**********************
|
||||
* STATIC FUNCTIONS
|
||||
**********************/
|
||||
|
||||
/**
|
||||
* Handle the drawing related tasks of the sliders
|
||||
* @param slider pointer to an object
|
||||
* @param clip_area the object will be drawn only in this area
|
||||
* @param mode LV_DESIGN_COVER_CHK: only check if the object fully covers the 'mask_p' area
|
||||
* (return 'true' if yes)
|
||||
* LV_DESIGN_DRAW: draw the object (always return 'true')
|
||||
* LV_DESIGN_DRAW_POST: drawing after every children are drawn
|
||||
* @param return an element of `lv_design_res_t`
|
||||
*/
|
||||
static lv_design_res_t lv_switch_design(lv_obj_t * sw, const lv_area_t * clip_area, lv_design_mode_t mode)
|
||||
{
|
||||
/*Return false if the object is not covers the mask_p area*/
|
||||
if(mode == LV_DESIGN_COVER_CHK) {
|
||||
return LV_DESIGN_RES_NOT_COVER;
|
||||
}
|
||||
/*Draw the object*/
|
||||
else if(mode == LV_DESIGN_DRAW_MAIN) {
|
||||
|
||||
/*The ancestor design function will draw the background and the indicator.
|
||||
* It also sets ext->bar.indic_area*/
|
||||
ancestor_design(sw, clip_area, mode);
|
||||
|
||||
lv_switch_ext_t * ext = lv_obj_get_ext_attr(sw);
|
||||
|
||||
lv_coord_t objw = lv_obj_get_width(sw);
|
||||
lv_coord_t objh = lv_obj_get_height(sw);
|
||||
lv_coord_t knob_size = objh;
|
||||
lv_area_t knob_area;
|
||||
|
||||
lv_style_int_t bg_left = lv_obj_get_style_pad_left(sw, LV_SWITCH_PART_BG);
|
||||
lv_style_int_t bg_right = lv_obj_get_style_pad_right(sw, LV_SWITCH_PART_BG);
|
||||
|
||||
lv_coord_t max_indic_w = objw - bg_left - bg_right;
|
||||
lv_coord_t act_indic_w = lv_area_get_width(&ext->bar.indic_area);
|
||||
|
||||
|
||||
knob_area.x1 = ext->bar.indic_area.x2 - ((act_indic_w * knob_size) / max_indic_w);
|
||||
knob_area.x2 = knob_area.x1 + knob_size;
|
||||
knob_area.y1 = sw->coords.y1;
|
||||
knob_area.y2 = sw->coords.y2;
|
||||
|
||||
lv_style_int_t knob_left = lv_obj_get_style_pad_left(sw, LV_SWITCH_PART_KNOB);
|
||||
lv_style_int_t knob_right = lv_obj_get_style_pad_right(sw, LV_SWITCH_PART_KNOB);
|
||||
lv_style_int_t knob_top = lv_obj_get_style_pad_top(sw, LV_SWITCH_PART_KNOB);
|
||||
lv_style_int_t knob_bottom = lv_obj_get_style_pad_bottom(sw, LV_SWITCH_PART_KNOB);
|
||||
|
||||
/*Apply the paddings on the knob area*/
|
||||
knob_area.x1 -= knob_left;
|
||||
knob_area.x2 += knob_right;
|
||||
knob_area.y1 -= knob_top;
|
||||
knob_area.y2 += knob_bottom;
|
||||
|
||||
lv_draw_rect_dsc_t knob_rect_dsc;
|
||||
lv_draw_rect_dsc_init(&knob_rect_dsc);
|
||||
lv_obj_init_draw_rect_dsc(sw, LV_SWITCH_PART_KNOB, &knob_rect_dsc);
|
||||
|
||||
lv_draw_rect(&knob_area, clip_area, &knob_rect_dsc);
|
||||
|
||||
}
|
||||
/*Post draw when the children are drawn*/
|
||||
else if(mode == LV_DESIGN_DRAW_POST) {
|
||||
return ancestor_design(sw, clip_area, mode);
|
||||
}
|
||||
|
||||
return LV_DESIGN_RES_OK;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Signal function of the switch
|
||||
* @param sw pointer to a switch object
|
||||
* @param sign a signal type from lv_signal_t enum
|
||||
* @param param pointer to a signal specific variable
|
||||
* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
|
||||
*/
|
||||
static lv_res_t lv_switch_signal(lv_obj_t * sw, lv_signal_t sign, void * param)
|
||||
{
|
||||
lv_res_t res;
|
||||
|
||||
if(sign == LV_SIGNAL_GET_STYLE) {
|
||||
lv_get_style_info_t * info = param;
|
||||
info->result = lv_switch_get_style(sw, info->part);
|
||||
if(info->result != NULL) return LV_RES_OK;
|
||||
else return ancestor_signal(sw, sign, param);
|
||||
}
|
||||
|
||||
if(sign == LV_SIGNAL_GET_TYPE) {
|
||||
res = ancestor_signal(sw, sign, param);
|
||||
if(res != LV_RES_OK) return res;
|
||||
return lv_obj_handle_get_type_signal(param, LV_OBJX_NAME);
|
||||
}
|
||||
|
||||
/* Include the ancient signal function */
|
||||
res = ancestor_signal(sw, sign, param);
|
||||
if(res != LV_RES_OK) return res;
|
||||
|
||||
if(sign == LV_SIGNAL_CLEANUP) {
|
||||
/*Nothing to cleanup. (No dynamically allocated memory in 'ext')*/
|
||||
} else if(sign == LV_SIGNAL_RELEASED) {
|
||||
if(lv_switch_get_state(sw)) lv_switch_off(sw, LV_ANIM_ON);
|
||||
else lv_switch_on(sw, LV_ANIM_ON);
|
||||
|
||||
res = lv_event_send(sw, LV_EVENT_VALUE_CHANGED, NULL);
|
||||
if(res != LV_RES_OK) return res;
|
||||
|
||||
} else if(sign == LV_SIGNAL_CONTROL) {
|
||||
char c = *((char *)param);
|
||||
if(c == LV_KEY_RIGHT || c == LV_KEY_UP) lv_switch_on(sw, LV_ANIM_ON);
|
||||
else if(c == LV_KEY_LEFT || c == LV_KEY_DOWN) lv_switch_off(sw, LV_ANIM_ON);
|
||||
|
||||
res = lv_event_send(sw, LV_EVENT_VALUE_CHANGED, NULL);
|
||||
if(res != LV_RES_OK) return res;
|
||||
}else if(sign == LV_SIGNAL_REFR_EXT_DRAW_PAD) {
|
||||
lv_style_int_t knob_left = lv_obj_get_style_pad_left(sw, LV_SLIDER_PART_KNOB);
|
||||
lv_style_int_t knob_right = lv_obj_get_style_pad_right(sw, LV_SLIDER_PART_KNOB);
|
||||
lv_style_int_t knob_top = lv_obj_get_style_pad_top(sw, LV_SLIDER_PART_KNOB);
|
||||
lv_style_int_t knob_bottom = lv_obj_get_style_pad_bottom(sw, LV_SLIDER_PART_KNOB);
|
||||
|
||||
/* The smaller size is the knob diameter*/
|
||||
lv_coord_t knob_size = LV_MATH_MIN(lv_obj_get_width(sw), lv_obj_get_height(sw)) >> 1;
|
||||
knob_size += LV_MATH_MAX(LV_MATH_MAX(knob_left, knob_right), LV_MATH_MAX(knob_bottom,knob_top));
|
||||
knob_size += 2; /*For rounding error*/
|
||||
|
||||
knob_size += lv_obj_get_draw_rect_ext_pad_size(sw, LV_SLIDER_PART_KNOB);
|
||||
|
||||
/*Indic. size is handled by bar*/
|
||||
sw->ext_draw_pad = LV_MATH_MAX(sw->ext_draw_pad, knob_size);
|
||||
}
|
||||
else if(sign == LV_SIGNAL_GET_EDITABLE) {
|
||||
bool * editable = (bool *)param;
|
||||
*editable = false; /*The ancestor slider is editable the switch is not*/
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
static lv_style_list_t * lv_switch_get_style(lv_obj_t * sw, uint8_t part)
|
||||
{
|
||||
LV_ASSERT_OBJ(sw, LV_OBJX_NAME);
|
||||
|
||||
lv_switch_ext_t * ext = lv_obj_get_ext_attr(sw);
|
||||
lv_style_list_t * style_dsc_p;
|
||||
|
||||
switch(part) {
|
||||
case LV_SWITCH_PART_BG:
|
||||
style_dsc_p = &sw->style_list;
|
||||
break;
|
||||
case LV_SWITCH_PART_INDIC:
|
||||
style_dsc_p = &ext->bar.style_indic;
|
||||
break;
|
||||
case LV_SWITCH_PART_KNOB:
|
||||
style_dsc_p = &ext->style_knob;
|
||||
break;
|
||||
default:
|
||||
style_dsc_p = NULL;
|
||||
}
|
||||
|
||||
return style_dsc_p;
|
||||
}
|
||||
#endif
|
||||
Reference in New Issue
Block a user